Malicious PDF — malware analysis report

Static analysis result for SHA-256 62eace194c7c221a…

MALICIOUS

PDF

62.8 KB Created: 2020-12-18 08:53:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: aae3ef49279ab3d7ff9d39c1c964bde2 SHA-1: e56a56c508554cc432f2b1a9234f60805b10df29 SHA-256: 62eace194c7c221a378b952e5f53793113407c539ce9c8f2e00df3b3ef6e40a4
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffmen.ru/wb?keyword=standard%20aluminium%20sheet%20sizes In PDF document text
    • https://vuzavadakugodo.weebly.com/uploads/1/3/4/8/134857872/wegizopu.pdfIn PDF document text
    • https://wesoxiworikezux.weebly.com/uploads/1/3/1/3/131380467/zepovuvuta.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/c10996.pdfIn PDF document text
    • https://gokimojesip.weebly.com/uploads/1/3/4/5/134595710/5858682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408483/normal_5f9df8d3af4a5.pdfIn PDF document text
    • https://rofaxebawo.weebly.com/uploads/1/3/4/7/134750080/sagunibaxufezekar.pdfIn PDF document text
    • https://suvuzijovibalis.weebly.com/uploads/1/3/4/6/134660606/muramukasigowexem.pdfIn PDF document text
    • https://posukezeke.weebly.com/uploads/1/3/4/7/134746748/romajifam-xorisofuk-tenunivofemumex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5f874755ec7a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393515/normal_5fc44177329f9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/benekijiluziwudizufaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b9d21f1-2121-42f2-9144-14bf431ef279/nakikodolezimipitexelu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2321c32b-8a13-4063-82ef-2fd48c88cd8e/lionel_richie_lady_mp3_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/583b7caa-fdfb-4165-971d-66377292c0ac/98187574032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da300a10-9fe7-40b7-9714-e320a9995412/1037217931.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF9 5220 bytes
SHA-256: 3efc77ede519642e7c711775d8a094f8f255ea0d6b65d9ef01823016ead2c635
font_01_sfnt_off0000cd8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD8D 9720 bytes
SHA-256: f62250921d84cd92b4f2e0141da0f49d7578fba869b22896b41129722c53b3cc

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